Lighting attachment.



T. w; ROLPH & w. LUMLEY.

LIGHTING ATTACHMENT.

APPLICATION FILED NOV. 8. 1915.

1,294,306. Patented Feb. 11,1919.

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2 UNITED STATES PATENT OFFICE.

THOMAS W. BOLPH AN'D WILFRID LUMLEY, OF CLEVELAND, OHIO, ASSIGNORS TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW-YORK.

LIGHTING n'rrncniunnr.

Specification of Letters Patent.

Application filed November 8, 1915. Serial No. 60,199.

To all whom it may concern:

Be it known that we, THOMAS W. RoLrH and Wmrnm LUMLEY, citizens of the United States, residing at Cleveland, county of Cuyahoga, State of Ohio, have invented certain new and useful Improvements in Lighting Attachments, of which the following is a specification.

Gur invention relates to lighting attachments, and more particularly to lighting attachments for machines. An object of our invention is to provide a lighting attachment which is capable of ready adjustment so that the light may be concentrated upon any desired portion of the machine, and particularly upon the mechanism thereof which operates directly upon the work. A further object of our invention is to provide an attachment which may be readily attached to or detached from machines now upon the market.

Our invention is particularly adapted for use in connection with machines comprising an arm carrying a mechanism at one end thereof. Our attachment comprises an arm which may be pivotally mounted at the same end with the aforesaid mechanism, and which is adapted to swing in a plane substantially parallel with said arm. The attachment arm has pivotally connected thereto a light source which is adapted to swing in a plane substantially at right angles to the first-mentioned plane. In the case of machines, such as sewing machines, having a substantially horizontally extending arm carrying a mechanism, such as a needle-bar mechanism, at one end thereof, the attachment arm is pivotally mounted above the said mechanism so as to swing in a substantially horizontal plane. The light source in such case is pivoted to the attachment arm so as to swing in a substantially vertical plane. Our attachment is preferably provided with means for clam ing the attachment arm in any desired osition, and the said clamping means is pre erably such as to allow the ready removal of the attachment arm and so of the lighting attacent as a whole. In the case of sewing machines the late or other device upon which the attac ent arm is ivoted is preferably secured to the cover p ate of the needle-bar casing. This may ordinaril be done without necessitating any alteration of the original machine as one of tailed description which follows and from a reference to the accompanying drawing, in

- which Figure 1 is a perspective of a portion of a sewing machine having one form of our lighting attachment applied thereto; Fig. 2 is an elevation, partly in section, of the main portion of our attachment, and Fig. 3 is a plan view of the same.

Referring now to the drawing, the sewing machine 10 is provided with the ordinary arm 11, which carries at one end thereof the needle bar casing 12. An attachin means such as the angle plate 13 is secure to the face plate 1 L of the needle bar casing, as by a screw 15, which is preferably one of the screws which is ordinarily used for securing the said face plate to the casing. The plate 13 extends over the top of the casing and carries a vertically extending stud 1 A horizontally extending arm 16 is provided with a sleeved end 17, which passes over the stud The latter is screw threaded at 18 and a thumb nut 19 engages therewith, and by this means the arm 16 may be clamped in any desired position, or b loosening the said nut the arm may be moved sition in a horizontal plane. Pivoted to the other end of the arm 16 is an angle-plate 20 which carries the lamp socket 21, being perforated to receive the conductor cord 22. The socket 21 preferably supports a reflector 23. This is preferably of the concentrating type and may be provided with ventilating openings 24. Preferably these are forme by cutting and pressing in the metal from below, thus protecting the eyes of the operator from the light. A suitable support 25 is provided for the cord 22 on the vertically extending portion of the arm 11. A support ring 26 is carried by the thumb nut 19, being attached to the ring 27, which is loosely held in a groove in the said thumb nut.

It will be apparent that the arm 16 can be turned to any position in a horizontal plane so that the light may be thrown upon the needle from any desired direction. By tilting the angle-plate 2Q the position of the lamp may be adjusted in a vertical plane. By swinging the arm 16 to a positionmore or1ess transverse to the arm 11 and suitably to any desired poadjusting the angle-plate 20, the light may be directed upon work held in the lap of the operator or toward any other desired point awa from or upon the machine.

' T e construction is such that the lamp can be readily removed from the machine and fastened to any other point, as to a window sill, to be used as a reading'lamp. It Will be apparent also that the construction is such that the bracket may be swung in close to the arm of the machine so that, as in the case of foldin machines, the machine can be closed wit the complete outfit inside.

What We claim and desire to secure by Letters Patent of the United States, is:

1. A lighting attachment, adapted to be mounted on the needle bar casing of a sewing machine, comprising a plate, a vertical stud fixed to said plate, a horizontal bracket arm carrying an incandescent lamp at one end and sleeved at the other on said stud for adjustment in the horizontal plane, said stud bein screW-threaded and adapted to receive a ho ding and clamping thumb nut for facilitating the removal of said lamp and tically disposed stud fixed to said plate, a

horizontally extending bracket arm sleeved at one end on said stud and carryin at the other end an incandescent lamp pivoted for adjustment in the vertical plane, and a thumb nut adapted to be screwed on to said stud for clamping said arm in various horizontal positions and facilitating the removal thereof from the machine.

in Witness whereof, We have hereunto set our hands this fifth da of November, 1915.

.TH MAS W. ROLF.

W'ILFRID LUMEY. 

